TIMESTAMP与DATETIME select显示都是字符串时间值yyyy-mm-dd HH:MM:SS 2. TIMESTAMP range is'1970-01-01 00:00:01.000000'UTC to'2038-01-19 03:14:07.999999'UTC,入库时将时间转换为时间戳存储,查询时再转为带时区的时间;DATETIME range is'1000-01-01'to'9999-12-31' 3. Ifexplicit_defaults_for_...
The MySQL TIMESTAMP is the only data type designed to store instant points on the time-line using the implied time zone conversion. Incoming values are converted by server from the session time zone to UTC for storage, and outgoing values are converted from UTC to the session time zone. The...
TIME[(fsp)] A time. The range is'-838:59:59.000000'to'838:59:59.000000'. MySQL displaysTIMEvalues in'hh:mm:ss[.fraction]'format, but permits assignment of values toTIMEcolumns using either strings or numbers. An optionalfspvalue in the range from 0 to 6 may be given to specify fracti...
test_time CREATE TABLE `test_time` ( `if_id` int(10) unsigned NOT NULL, `coll_type_id` tinyint(3) unsigned NOT NULL, `value_diff` bigint(20) unsigned DEFAULT NULL, `rate` int(10) unsigned DEFAULT NULL, `coll_ts` time NOT NULL ...
mysql> # date能存1000-01-01 9999-12-31 mysql> # 时间类型 20:20:20 mysql> # 论坛每天来签到,记录签到时间 mysql> alter table test3 add sign time not null default 00:00:00; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL ...
MySQL 以YYYY-MM-DD hh:mm:ss格式检索和显示DATETIME值。 The supported range is'1000-01-01 00:00:00'to'9999-12-31 23:59:59'. 支持的范围是'1000-01-01 00:00:00'至'9999-12-31 23:59:59'。 TheTIMESTAMPdata type is used for values that contain both date and time parts.TIMESTAMPhas...
See also Section 11.2.10, “2-Digit Years in Dates”. Conversion of values from one temporal type to another occurs according to the rules in Section 11.2.9, “Conversion Between Date and Time Types”. MySQL automatically converts a date or time value to a number if the value is used...
2、Automatic Initialization and Updating for TIMESTAMP and DATETIME 3、总结 1、类型简介 1.1、存储使用的长度 MySQL 5.6.4版本之后允许TIME、TIMESTAMP、DATETIME类型具有[0-6]位小数部分(Fractional Seconds in Time Values), 因而存储使用长度为变化的 ...
1、DATE, DATETIME, TIMESTAMP三者的区别: 首先说一下三者的不同之处: The DATE type is used for values with a date part but no time part. MySQL retrieves and displays DATE values in '*YYYY-MM-DD*' format. The su...
In MySQL, date and time values can be stored and manipulated using various data types and functions. One commonly used data type is theDATEdata type, which allows you to store dates without the time component. The date is represented as a string in the format ‘YYYY-MM-DD’. This format...